Sheet-metal corner bead



Patented Nov. 23, 1926.

JAMES II. DEAN, or LUnINGroN, MIHIGAN,

PANDED METAL COMPANY, OF CHICAGO,

AssIGNoR To NoR'rHwns'rERN Ex- ILLINoIs, A CORPORATION or ILLINOIS.

SHEET-METAL CORNER BEAD.

Application filed December 2. 1925. Serial No. 72,752.

This invention relates to corner beads such as are used in preparing walls for plastering to protect the corners and angles of the walls, and aims to provide a constrgction which will support the bead in a strong, rigid manner.

An object of the invention is to prm'idega sheet metal corner bead having a plurality vof longitudinally extending corrugations forming V-shaped ribs adapted to engage the wall of the building to space' the expanded panels from the wall so that the plaster may be forced through the mesh and keyed to the Same.

In the accompanying drawings forming part of this specification:

Figure 1 is a plan view of a sectionof a slitted sheet of metal from which the corner bead is formed.

Figure 2 is a side elevation of a finished corner bead; and

Figure 3 is a horizontal sectional yiew showing a corner bead mounted upon I e corner of a wall.

The corner bead featured in the invention is preferably constructed from a sheet metal blank 4 having unslitted portions 5, 6 and 7 extending longitudinally thereof, and also having groups of slits 8 cut in the metal blank between the Aunslittedportions 5, 6

- and 7 to form meshes 9 when the strip is Aexpanded to its finished form, shown in Figure 2. Y

The means for spacing the meshed portions of the corner bead from the faces 12 and 13 of the wall corner when mounted thereon, is shown in Figure 3. Such means preferably consists of ribs 14 formed by inwardly bending the unslitted portions of the blank as shown. The central unslitted portion 7 is preferably formed into a bead 15, spaced from the meshe'd portions of the corner bead by means of a neck 16by rolling or bending the metal as shown. The unslitted portions 15 on either side of the blank are preferably provided with spaced holes 17 through which' nails 18 may be inserted for the purpose of securing the corner bead to the wall as shown in Figure 3.

'While I have herein shown and described 5" an embodiment of my invention, it is to be i understood that I do not desire to be limited to the specific structures shown' and described, s1nce many modifications may be made in my invention without departing from the spirit and scope ofthe appended claims.

I claim as my invention:

1. A corner plaster-terminal comprising a sheet metal plate of angular form having an outwardly extending bead at its angle and an inwardly projecting rib intermediate the corner bead and each edge of the sheet, and longitudinally extending expanded metal areas meshes formed in the sheet metal plate between the corner bead and each inwardly projecting rib.l s

2. A corner plaster-terminal comprising the corner bead and each edge of the sheet, and longitudinally Iextending expanded providing plaster holding (i5v Va sheet metal plate of angular form having an outwardly extending bead at its angle and an inwardly projecting ribA intermediate metal areas between the corner bead and each rib and similar areas between each rib and the edge of the sheet, said expanded metal areas providing plaster holding meshes.

3..A corner plaster-terminal comprising 8U a sheet metal plate of angular form having an outwa'dly extending bead at its angle and an inwardly projecting V-shaped rib intermediate the corner bead and each edge ofthe sheet and longitudinally extending expanded metal areas providing plaster holding meshes formed in the sheet metal plate between the corner bead and each inwardly projecting rib.

In Witness whereof, I'have hereunto set 90 my hand this 27th day of October, 1925.

JAMES' H. DEAN. 

